| Biddulph to Smolyan | 1,475.61 mi (2,374.76 km) |
| Biddulph to Sofia | 1,371.98 mi (2,208.00 km) |
| Biddulph to Sopot | 1,429.39 mi (2,300.38 km) |
| Biddulph to Sozopol | 1,555.99 mi (2,504.12 km) |
| Biddulph to Sredets | 1,539.02 mi (2,476.81 km) |
| Biddulph to Stamboliyski | 1,444.05 mi (2,323.98 km) |
| Biddulph to Stara Zagora | 1,474.21 mi (2,372.51 km) |
| Biddulph to Svilengrad | 1,525.46 mi (2,454.99 km) |
| Biddulph to Svishtov | 1,411.41 mi (2,271.45 km) |
| Biddulph to Targovishte | 1,475.93 mi (2,375.28 km) |
| Biddulph to Teteven | 1,398.76 mi (2,251.09 km) |
| Biddulph to Troyan | 1,417.83 mi (2,281.78 km) |
| Biddulph to Tryavna | 1,449.34 mi (2,332.49 km) |
| Biddulph to Tutrakan | 1,444.20 mi (2,324.22 km) |
| Biddulph to Varna | 1,530.71 mi (2,463.43 km) |
